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package Filtros;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author ccedeno
 */
public class RestrictPageFilter implements Filter{

    FilterConfig fc;
    
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        fc = filterConfig;
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) 
            throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse resp = (HttpServletResponse) response;
        HttpSession session = req.getSession(true);
        String pageRequested = req.getRequestURL().toString();
        System.out.println(" -- pageRequest : "+pageRequested);
        if(session.getAttribute(pageRequested) == null && !pageRequested.contains("logon.xhtml")){
            resp.sendRedirect("logon.xhtml");
        }else{
            chain.doFilter(request, response);
        }
    }

   
    @Override
    public void destroy() {
         fc = null;
    }
    
    
}
